Large language models (LLMs) may not reliably acknowledge a user’s incorrect beliefs, according to a new paper published in Nature Machine Intelligence. The findings highlight the need for careful use of LLM outputs in high-stakes decisions in…
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Large language models still struggle to tell fact from opinion, analysis finds
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Depletion of Ukraine's soils threatens long-term global food security
Beyond the disruption to Ukraine’s food exports, the war is jeopardizing the country’s long-term ability to remain the “breadbasket of Europe,” because its soils are gradually losing vital crop nutrients.
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Why the for-profit race into solar geoengineering is bad for science and public trust
Many people already distrust the idea of engineering the atmosphere—at whichever scale—to address climate change, fearing negative side effects, inequitable impacts on different parts of the world, or the prospect that a world expecting such…
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20,000-Year-Old Tools Found in the U.S. Rewrite the Origins of the First Americans
New archaeological evidence is rewriting the early history of North America. A fresh look at ancient stone tools suggests that the first humans may have arrived far earlier—and traveled far differently—than once believed. Rather than…
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New model forecasts 10-year heart risk after breast cancer treatment
A multi-institution research team led by Georgetown University Medical Center has developed and validated a model estimating the 10-year risk of heart failure or cardiomyopathy after early-stage breast cancer treatment. Separating women into low,…
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Astronomers may have found the first stars that formed after the Big Bang
For years, astronomers have been on the hunt for the first generation of stars, primordial relics of the early universe. And now they may have just found them. Ari Visbal from the University of Toledo, Ohio and colleagues believe they’ve glimpsed…
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Birds, not wind, brought life to Iceland’s youngest island
When the volcanic island of Surtsey emerged from the North Atlantic Ocean in 1963, it presented scientists with a rare natural experiment: a chance to watch life begin on untouched land. For many years, ecologists assumed that plants reached…
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2.7-million-year-old tools reveal humanity’s first great innovation
For nearly 300,000 years, early humans shaped stone tools with precision, even as they faced constant wildfires, severe droughts, and dramatic shifts in their environment. A new study published in Nature Communications reveals astonishing…
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Q&A: Expert discusses mixed signals in China's latest climate commitments
China has just unveiled a new set of climate targets that will shape the pace of global decarbonization for years to come. As the United States steps back from climate leadership, the world’s attention has turned to China—the largest emitter of…
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This new drug candidate might finally outsmart tuberculosis
Scientists have created a promising new compound that could mark a major step forward in the global effort to control tuberculosis, the world’s deadliest infectious disease.
A new study in Nature highlights the potential of this compound, called…
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